diff --git a/.gitmodules b/.gitmodules
index 4c9d8560..c6610a47 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,6 @@
 [submodule "lib/openzeppelin-contracts"]
 	path = lib/openzeppelin-contracts
 	url = https://github.com/openzeppelin/openzeppelin-contracts
+[submodule "lib/permit2"]
+	path = lib/permit2
+	url = https://github.com/Uniswap/permit2
diff --git a/lib/permit2 b/lib/permit2
new file mode 160000
index 00000000..778de34c
--- /dev/null
+++ b/lib/permit2
@@ -0,0 +1 @@
+Subproject commit 778de34c6e965f1fea1a82080122a7057c6f24ee